Abstract：Rectifiers with small DC-link capacitors feature the advantages of low cost，high power density，and

small volume，showing significant application potential in aerospace，marine engineering，and other fields.

However，small DC-link capacitors provide weak DC voltage support，and sudden load changes can easily induce

large fluctuations in the DC-bus voltage. A small-capacitor rectifier power generation system was investigated.

Based on the instantaneous power conservation principle，the suppression mechanism of DC-bus voltage

fluctuations was analyzed. Combined with the power factor operation characteristics of the generator，a power feedforward compensation control strategy based on dynamic matching of the generator power factor was proposed based on the voltage-current dual-loop vector control，so as to suppress DC-bus voltage fluctuations caused by load switching of three-phase rectifiers. The proposed control strategy was validated through experiments. The results demonstrate that the proposed control strategy can effectively suppress DC-bus voltage fluctuations caused by sudden load changes，and significantly improve the dynamic response speed of the system.

        Key words：three-phase rectifier；DC voltage ripple suppression；power factor analysis；power feedforward

compensation

     Format Citation:何玮栋，程焱，王庆风,等. 基于功率前馈补偿的三相整流器功率因数动态匹配控制策略研究[J].电气传动,2026,56(07):16-21. HE Weidong，CHENG Yan，WANG Qingfeng,et al. Power factor dynamic matching control for three-phase rectifier with power feedforward compensation [J].Electric Drive, 2026,56(07):16-21。